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The air is deadly polluted because some factories don’t     __the rules to protect the environment.

A. appreciate       B. regard         C. honor      D. respect

 There is no need _______ and it’s no use __________ there too early.

A. to rush; arriving   B. to worry; to arrive   C. worrying; arriving   D. to rush; to arrive

Could it be in the restaurant in ____ you had dinner with me yesterday ____you left behind your keys and wallet?

A．which；which     B．which；that      C．that；where       D．where；where

On his way home, he found a wallet ____ on the ground, which he picked up and ____ in his schoolbag.

A. laid; lay       B. laying; laid       C. lying; laid      D. lain; lay

 It's a rule for all the students to _____ their places ahead of 5 minutes waiting for the class to be started.

A．take up             B．pick up           C．keep up          D．give up

 His uncle went abroad in 2010, and __________ since.

A. had not been heard of      B. has not been heard of 

C. had not heard of          D. has not heard of

There is a small object _____ a pin on the desk.

A. resembling        B. resembling with   C. resembled        D. resembled like

Although he knew little about the work done in the field, he succeeded ____other more experienced experimenters failed.

A. which               B. that                          C. what                        D. where

Shortly after the accident, _____ policemen were sent to the spot to keep order.

A. score of          B. two scores        C. score        D. scores of

Canada is a country _____many different nationalities as well as one with foreign immigrants _____ the majority of its population.

A. making up of; made up       B. consisting of; making up  

C. made up of; consists of       D. consisted of; made up